The cotton ball, representing a simplified version of lung tissue, turns a grim yellow, coated in tar from just that single cigarette
Lead author Dr Harry Tattan-Birch, of the UCL Institute of Epidemiology & Health Care, said: Our study shows, using data from the real world rather than an artificial lab setting, that nicotine absorption is much lower from second-hand vapour than from second-hand smoking
Smoking also damages the lining of the walls of the bodys blood vessels, which contributes to blood clot formation
If you are prescribed an antibiotic, take it exactly as directed and take all of the medicine even if the infection improves or goes away before you have finished the entire prescription
Quitting smoking and vaping may not be the first things that come to mind when you think of eco-friendly habits, but they can have a significant impact on the planet